As a porn game, this gets 2/5
As a VN, this gets 3/5
It has, without a doubt, more work put into it than any VN made using these models that I've come across. There are unique pictures for almost everything. Genuinely almost every single time the dialogue shifts slightly, so does the background. I cannot fathom how many renders they made for this thing.
The animations for the sex are also, without a doubt, some of the smoothest. The tongue bit with the slime girl is a prime example. They're not the best that I've seen, but they are smooth. The cum sequences are just downright trash, though. You go from 60fps animation to still frames with lazy cum strands. It's pretty jarring. There is also the glaring issue of SHOCKINGLY little porn. ASTOUNDINGLY little porn. If the story were good...I'd still not forgive it, but it'd be less of an issue. But it's really just not, so it's a huge issue.
That's about it for quality. The writing is dreadful. I saw a review mentioning that it's pretty 'uwu weeb garbage' and am mostly inclined to agree. It falls between weeb fantasy and terrible porn in terms of literary quality. Some things are fine, most are not, and the overall feel is just...subpar. Which is honestly a huge shame with how much work they put into the sheer number of unique stills. It is bewildering to me how many they made. Especially with how many of the sentences are just lame one liners like "You will not!" followed by another change in renders. You'll have a lame 2 word response, get a new render, a 4 word response, new render, 3 word response, new render, and repeat.
If the writing was even a fraction of the quality of the animations, this thing would slap. If they spent as much time polishing up the writing as they do making new renders, this would be the new Game of Thrones. The issue is that it's got about as much porn as the TV rendition, perhaps even less really, and not nearly as much quality as even the later seasons. It just falls flat. But the warring mix of quantity and quality in some areas vs the utter drought in others makes this an all around 3/5.